The game is questionabley unbalanced across the board. The Republic side allways has issues, which range from slow production to too expensive. X-Wings cost too much compaired to Tie Fighters. I allways thought they were equally balanced in the movies. When you play on the Empire's side, you have Star Destroyer that launch Ties. What I found is that there are no Republic ships that spawn X-Wings. I find that to be a great disadvantage for the Republic.
I don't play EAW too much, for it is not the greatest game in the world. However, I do find myself tinkering with it every once and a while.
R.I.P. to 'The Source' and 'MacCorp'